CVE-2024-28147: Unrestricted Upload of Files in edu-sharing

Severity: high (CVSS 7.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-06-20 · updated 2026-06-17
Weakness: CWE-434

Description

An authenticated user can upload arbitrary files in the upload function for collection preview images. An attacker may upload an HTML file that includes malicious JavaScript code which will be executed if a user visits the direct URL of the collection preview image (Stored Cross Site Scripting). It is also possible to upload SVG files that include nested XML entities. Those are parsed when a user visits the direct URL of the collection preview image, which may be utilized for a Denial of Service attack. This issue affects edu-sharing: <8.0.8-RC2, <8.1.4-RC0, <9.0.0-RC19.

Affected products

Metaventis Edu-Sharing: before 8.0.8-rc2; before 8.1.4-rc0; before 9.0.0-rc19 — fixed in 8.0.8-rc2, 8.1.4-rc0, 9.0.0-rc19

How to fix

Upgrade to a fixed version: Metaventis Edu-Sharing 8.0.8-rc2, 8.1.4-rc0, 9.0.0-rc19. Check the vendor advisory for mitigations.

References

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